2 from PyQt4.QtCore import Qt, QString, SIGNAL
3 from PyQt4.QtGui import QWidget, QLabel, QTreeView, QStandardItemModel, QVBoxLayout, QSizePolicy
5 from sfa.util.rspecHelper import RSpec
7 from sface.sficonfig import config
8 from sface.screens.sfascreen import SfaScreen
11 class SliceWidget(QWidget):
12 def __init__(self, parent=None):
13 QWidget.__init__(self, parent)
15 self.nodeView = QTreeView(self)
16 self.nodeView.setRootIsDecorated(False)
17 self.nodeView.setAlternatingRowColors(True)
18 self.nodeView.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
20 self.nodeModel = QStandardItemModel(0, 3, self)
21 self.nodeModel.setHeaderData(0, Qt.Horizontal, QString("Testbed"))
22 self.nodeModel.setHeaderData(1, Qt.Horizontal, QString("Hostname"))
23 self.nodeModel.setHeaderData(2, Qt.Horizontal, QString("IsIn"))
25 self.nodeView.setModel(self.nodeModel)
27 label = QLabel("<a href='refresh'>Refresh</a>", self)
28 label.setScaledContents(False)
29 self.connect(label, SIGNAL('linkActivated(QString)'), self.refresh)
31 slicename = QLabel ("Slice : %s"%(config.getSlice() or "None"),self)
33 layout = QVBoxLayout()
34 layout.addWidget(label)
35 layout.addWidget(slicename)
36 layout.addWidget(self.nodeView)
37 self.setLayout(layout)
38 self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
41 # TODO: use the methods from sfa-trunk
42 def rspec_get_networks(self, rspec_string):
43 rspec = RSpec (rspec_string)
44 return rspec.rspec.xpath("./network[@name]/@name")
45 def rspec_get_xml_nodes_from_network(self, rspec_string, network):
46 rspec = RSpec (rspec_string)
47 return rspec.rspec.xpath("./network[@name='%s']/site/node" % network)
48 def rspec_get_sliver_nodes_from_network(self, rspec_string, network):
49 rspec = RSpec (rspec_string)
50 return rspec.rspec.xpath("./network[@name='%s']/site/node[sliver]/hostname/text()" % network)
51 def rspec_get_other_nodes_from_network(self, rspec_string, network):
52 rspec = RSpec (rspec_string)
53 # xxx todo - could not find the xpath syntax for 'does not have the sliver attribute'
54 return rspec.rspec.xpath("./network[@name='%s']/site/node[~sliver]/hostname/text()" % network)
56 def refresh(self, link=None):
58 if not data.getSlice():
59 print 'slice not set yet'
61 if not data.SFACE_DEBUG:
62 rspec_string = data.getRSpecFromSM()
64 print 'SFACE_DEBUG : using local file'
66 rspec_string = open(os.path.expanduser("~/.sfi/%s.rspec"%data.getSlice())).read()
68 networks = self.rspec_get_networks(rspec_string)
71 for network in networks:
72 # nodes = self.rspec_get_sliver_nodes_from_network(rspec_string, network)
73 # for node in nodes: self.addNode(network, node, True)
74 # nodes = self.rspec_get_other_nodes_from_network(rspec_string, network)
75 # for node in nodes: self.addNode(network, node, False)
76 # hacky - i'm just gettin used to this xml navigation stuff
77 xml_nodes = self.rspec_get_xml_nodes_from_network(rspec_string, network)
78 from lxml import etree
79 # addNode inserts before, so let's start with the ones that are not in
80 for xml_node in xml_nodes:
81 if not xml_node.xpath('sliver'):
82 self.addNode(network,xml_node.xpath('hostname/text()')[0],False)
83 for xml_node in xml_nodes:
84 if xml_node.xpath('sliver'):
85 self.addNode(network,xml_node.xpath('hostname/text()')[0],True)
88 def addNode(self, testbed, hostname, mark):
89 self.nodeModel.insertRow(0)
90 self.nodeModel.setData(self.nodeModel.index(0,0), QString(testbed))
91 self.nodeModel.setData(self.nodeModel.index(0,1), QString(hostname))
94 self.nodeModel.setData(self.nodeModel.index(0,2), QString(msg))
98 class MainScreen(SfaScreen):
99 def __init__(self, parent=None):
100 SfaScreen.__init__(self, parent)
102 slice = SliceWidget(self)
103 self.init(slice, "Main Window", "PlanetLab Federation GUI")